Question

(v)
The degree of polynomial 3-y + 2y + 4y is
1
2
8
3​

Answer 1

Answer:

The degree of the polynomial 3-y+2y+4y is 1

Answer 2

Answer:

Ans. (i) 4x2 – 3x + 7

⇒ 4x2 – 3x + 7x°

∵ All the exponents of x are whole numbers.

∴ 4x2 – 3x + 7 is a polynomial in one variable.

(ii)

∵ All the exponents of y are whole numbers.

∴ is a polynomial in one variable.

(v) x10 + y3 + t50

∵; Exponent of every variable is a whole number,

∴ x10 + y3 + t50 is a polynomial in x, y and t, i.e. in three variables.

2. Write the co-efficients of x2 in each of the following:

(i) 2 + x2 + x

(ii) 2 – x2 + x3

(iii)

(v)

Ans. (i) 2 + x2 + x

The co-efficient of x2 is 1.

(ii) 2 – x2 + x3

The co-efficient of x2 is (–1).

(iii)

The co-efficient of x2 is

(iv)

∴ The co-efficient of x2 is 0